In this blog post, i will cover in detail how you can setup QEMU settings under GNS3 to emulate ASA 8.4(2). It has been made possible by a user “dmz” from 7200emu.hacki forum. Credit goes to him . Basically we will be using a patch which will automatically extract the kernel and initrd of ASA version 8.4(2). You can use resulting ASA initrd & kernel on any OS where you have installed GNS3.

DISCLAIMER: All information provided here are solely for self-education and investigation purposes. Provided AS-IS without any warranties.

I’m using Ubuntu 10.04 (LTS) although you can use pretty much any Linux Distros available out there.

Cisco Secure ACS 5.X Deployment Guide E-Book

Software Versions Used:

Here we are using latest GNS3 build 0.8.2. Cisco Software Versions you need (download from you CCO account ) are :

asa842-k8.bin

asdm-645-206.bin

Step 1:

(Right Click to view large image)

Download the script here , & first unpack the file (resulting in a shell script) and then make it executable as shown here